What are the different types of Bulkheads used in ship building

a. Flat Bulkhead

b. Corrugated Bulkhead

c. Longitudinal Bulkhead

d. Transverse Bulkhead.

e. Watertight Bulkhead

f. Non-Watertight Bulkhead

g. Fire Class A Bulkhead

h. Fire Class B Bulkhead

i. Fire Class C Bulkhead

j. Collision Bulkhead.

k. insulated bulkhead